Theoretical exploration on the activity of copper single-atom catalysts for electrocatalytic reduction of CO₂

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(14), P. 7735 - 7745

Published: Jan. 1, 2023

Modulating the structure and coordination environment can effectively improve CO 2 RR activity selectivity of single atom copper catalysts.

Language: Английский

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Exploring the potential of nanosized oxides of zinc and tin as recyclable catalytic components for the synthesis of cyclic organic carbonates under atmospheric CO2 pressure

Process Safety and Environmental Protection, Journal Year: 2023, Volume and Issue: 191, P. 630 - 645

Published: Feb. 7, 2023

Language: Английский

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UiO-67: A versatile metal-organic framework for diverse applications

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 526, P. 216354 - 216354

Published: Dec. 6, 2024

Language: Английский

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Solvent-free conversion of CO2 in carbonates through a sustainable macroporous catalyst

Giant, Journal Year: 2024, Volume and Issue: 18, P. 100258 - 100258

Published: April 4, 2024

The novelty of this work consists synthesizing and exploiting a heterogeneous catalyst containing ammonium chloride as part the polymeric sponge sites for CO2 capture. To aim, polymerization 2-acryloyl(oxyethyl)trimethylammonium was performed in cryo-condition, presence crosslinking agent, obtaining lightweight macroporous freestanding material. Its efficiency converting aromatic aliphatic epoxides to corresponding carbonates successfully proved by using proton Nuclear Magnetic Resonance (1H-NMR). Remarkably, conversion styrene oxide (SO) carbonate (SC) reached yield 99% after 24 hours reaction. calculated versus cyclohexene is 71%. Similar results were obtained substituting resin counter anion with Br−, although kinetic slower than chloride. It worth noticing that reactions took place mixture without adding tetrabutylammonium bromide (TBAB), typically used co-catalyst convert into carbonates. recyclability as-prepared evaluated four reaction cycles, evidencing stable properties significant depletion capture efficiency. Most importantly, post-cleaning catalytic not required be reused. Finally, green chemistry metrics applied process demonstrated our approach significantly mitigates risks reduces environmental impact, thus elevating overall cleanliness proof concept.

Language: Английский

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Magnesium-porphyrin as an efficient photocatalyst for the transformation of CO₂ to cyclic carbonates and oxazolidinones under ambient conditions

Catalysis Science & Technology, Journal Year: 2024, Volume and Issue: 14(11), P. 3125 - 3130

Published: Jan. 1, 2024

Herein, we report an efficient and simple photocatalytic system based on Mg-porphyrin for the synthesis of cyclic carbonates oxazolidinones. As this reaction uses non-toxic, renewable, widely available CO 2 , it promotes sustainability.

Language: Английский

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Bypassing halide immobilization with cooperative polymers for the cycloaddition of atmospheric CO2 to epoxides

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155635 - 155635

Published: Sept. 1, 2024

Language: Английский

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High-Performance Zn-Zr-Al(O) Mixed Oxides Catalysts for Co2 Sustainable Cycloaddition with Cyclohexene Oxide

Published: Jan. 1, 2025

The cycloaddition of CO2 with cyclohexene oxide is a promising method to convert into value-added products, such as cyclohexane carbonate, which may contribute reducing greenhouse gas emissions. However, the process often relies on expensive, non-recoverable homogeneous catalysts. This study explores Zn-Zr-Al heterogeneous catalysts derived from layered double hydroxides synthesized via co-precipitation. Zn/Zr molar ratio significantly influenced physicochemical properties catalysts, including crystallite size, surface area, adsorption capacity, and carbonate species. Higher Zr content increased microporosity, capture, correlating catalytic performance. Under solvent-free conditions (50 bar CO2, 70 °C, 24 h), experiments without cocatalyst achieved low conversions (<20%). Adding TBAB improved conversion ~40%. Optimal performance was observed for 3, yielding 88.8%–97.6% selectivities 95.8%–96.1% temperature 85 °C 100 °C. Pressure enhancements (10–30 bar) further boosted 78.8% 97.2%, reaching 97.1%. catalyst demonstrated good reusability, maintaining 94.3%–96.2% 94.6%–95.9% over three cycles. These results highlight potential stable, reusable, environmentally friendly systems under mild conditions.

Language: Английский

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High-performance Zn-Zr-Al(O) mixed oxides catalysts for CO₂ sustainable cycloaddition with cyclohexene oxide

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 115838 - 115838

Published: Feb. 18, 2025

Language: Английский

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Linear poly(ionic liquid)-adsorbed graphene oxide as a bifunctional catalyst for CO2 conversion

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130593 - 130593

Published: Feb. 1, 2025

Language: Английский

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Insights into the catalytic application of coordinated metal complexes in CO2 conversion via cycloaddition

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142200 - 142200

Published: March 1, 2025

Language: Английский

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